Coffman Commentaries on the Bible - Proverbs 16:20
"He that giveth heed unto the word shall find good; And whoso trusteh in Jehovah, happy is he."These clauses are parallel. The man that heeds the Word of God is exactly the same man that trusts in Jehovah. A man can do neither without doing both. "There can be no real blessedness in life without one's trusting in the Lord. Men are so constituted that if their souls are to find rest, they must trust the loving power and wisdom of that Being who is stronger and wiser than themselves."[23] read more
E.W. Bullinger's Companion Bible Notes - Proverbs 16:21
heart. Put by Figure of speech Metonymy (of Subject), App-6 , for understanding or discernment. read more